Patent US3663209A successfully refreshed from Google Patents.
US3663209A
Expired / Lapsed
US
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Light-sensitive silver halide photographic material containing as a stabilizer a hydroimidazo-s-triazine
Assignee: Konica Minolta Inc
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Filing: 1969-12-04
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Granted: 1972-05-16
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Expires: 1989-12-04
Abstract
Abstract A light-sensitive silver halide photographic material containing in at least one of its photographic layers a hydroimidazo-striazine compound as a stabilizer.
Inventors
- 👤 Shui Sato
- 👤 Tomio Nakajima
- 👤 Masayuki Shono
- 👤 Teruo Kagami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:05
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/04; C07D487/12; C07D487/14; G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A light-sensitive silver halide element as claimed in claim 1, wherein said element is a light-sensitive silver halide color photographic element.
Claim 2
Dependent Claim
24 words
A light-sensitive silver halide photographic element as claimed in claim 2, wherein said photographic layer is an emulsion layer, interlayer, sublayer or protective layer.
References Cited (Backward Citations)
US2444607A
Cited
US2444609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |